KR100804256B1 - Flexible manual on/off device - Google Patents

Abstract

A flexible manual on/off device is provided to smoothly transmit rotation driving power to a switch on/off axis even though a rotation driving power transmission position to the switch on/off axis by a manual handle is not a linear direction but an arbitrary direction. A flexible manual on/off device comprises a flexible cable unit(20), an elbow pipe(30), a power driving side fixing unit(50), and a crank type manual handle(60). The flexible cable unit includes a flexible plastic tube(21), a metallic pipe(22), a hollow connection bolt(23), a hollow connection nut(24), and a flexible spring cable(25). The elbow pipe has a bearing(33), a first bevel gear(31), a second bevel gear(32), and a power transmission fixing unit(35). The power driving side fixing unit is screw-coupled to the hollow connection nut, has a square hole(511) at one side and a coupling pin(51) with a square connection unit(512) at the other side, and is fixed to a door of a distribution board. The crank type manual handle has a square hole(61) into which the square connection unit of the coupling pin of the power driving side fixing unit is inserted.

Description

Flexible remote on-off device {Flexible manual on / off device}

1 is an exploded view showing the technical configuration of the present inventors' flexible remote manual switchgear.

FIG. 2 is a technical diagram illustrating the assembly of FIG. 1.

3 is a state diagram used in the flexible remote manual switching device of the present invention.

4 is a plan view showing a state of use of the flexible remote manual switching device of the present invention installed on the switchgear.

5 is a side view showing a state of use of the present invention installed on the switchgear of the flexible remote manual switchgear of the present invention.

6 is a side view showing a state of use of the conventional manual switchgear installed in the switchgear of the switchboard.

** Explanation of symbols for main parts of drawings **

20: flexible cable unit 21: flexible plastic unit

22: metal pipe 23: hollow connection bolt

24: Hollow connection nut 25: Flexible spring cable

30: bent tube 31: first bevel gear

32: second bevel gear 33: bearing

34: clutch bearing 35: power transmission side fixture

50: power drive side fixture 51: coupling pin

60: manual handle

The present invention relates to a manual switchgear of a load switchgear or a failure load automatic load switchgear used in the switchgear and disconnection of the high voltage, in particular a single switchgear of the switchgear on / off shaft receiving the rotating power while the manual switchgear The present invention relates to a flexible remote manual open / close device configured to be flexible to bend freely so as to smoothly transmit rotational driving force in any direction regardless of the position of the upper part or the side part.

In general, electricity generated at a voltage of about 20,000 V in various power plants (heat, hydro, nuclear power, etc.) is boosted to an ultra high voltage (154 KV or 345 KV) suitable for power transmission and is transmitted to a primary substation through an ultra high voltage line. In the primary substation, this supplied power is lowered back to 22.9 KV, which is then supplied to each general consumer along the secondary substation or distribution line near the large capacity consumer. In other words, the power supplied from the primary or secondary substation is supplied to the receiving equipment of each customer through the distribution system consisting of overhead distribution line and underground distribution line, and is supplied to the low voltage consumer through the special high pressure consumer, high pressure consumer and various outdoor transformers. do. At this time, a load break switch (LBS) is widely used for the purpose of protecting the line, branch and transformer primary side of the high-voltage consumer switchgear.

In the transmission and distribution power system, which is a power system provided to the customer (industrial site, home, etc.), there is always an electrical accident caused by external physical contact such as tree contact, lightning, vehicle accident, and wind. As a result, the fault current generated by the power system accident causes electrical or mechanical damage to the connected equipment. Therefore, it is necessary to cut off the power supply of the line part which a fault occurred promptly. Accordingly, in case of an accident (ground fault, short circuit, etc.) in the customer's premises, it is immediately disconnected from the power supply (opening the fault section in case of fault current) to prevent the spread of the accident and to minimize the damage of the facility. (ASS: Automatic Section Switch) is widely used.

In case of an emergency such as a battery discharge or a power failure to turn on / off the switch, the switch must be manually turned on / off.

On / off (ON / OFF) opening and closing device of the switch (1) by the conventional manual operation as shown in Figure 6 and the manual handle 11 is formed crank-shaped square hole 111; A first manual operation connecting rod 12 having a power drive side fixture 121 installed in the switchboard door 2; A second manual operation connecting rod 13 having a first bevel gear 16 installed at its end by a connecting pin 161; A second bevel gear (17) installed on the on / off shaft (18) of the switch and engaged with the first bevel gear (16); Connecting pins 15 connecting the first and second manual operation connecting rods 12 and 13; And a support 14 for preventing sagging of the first and second manual operation connecting tables 12 and 13.

As described above, the operation of manually turning on / off the switch 1 by using the manual handle 11 of the switchgear installed in the switchboard is carried out by turning the square hole 111 of the manual handle 11 into the power drive side fixture 121. When inserted into a square pin (not shown) and rotates, the first manual operation connecting rod 12 connected thereto is rotated, and the second manual operation connecting rod 13 is rotated by the connecting pin 15 to rotate the first bevel gear. (16) and the second bevel gear 17 are rotated to rotate the switch on / off shaft 18 so that the switch 1 can be turned on / off.

The support 14 is installed on the side wall of the switchboard to prevent sagging during rotation of the first and second manual operation connecting rods 12 and 13 of the manually operated switchgear, and the switch on / off shaft 18 Since the distance between the first and second bevel gears 16 and 17 connected to the first and second bevel gears 16 and 17 is not in a straight line, the first and second manual operation connecting rods 12 and 13 may be connected to each other by a connecting pin 15 for smooth operation thereof. The operation is smooth.

The manual switchgear installed in the conventional switchgear as described above should be connected to the separate first and second manual operation connecting rods with the connecting pins, and supported by the first and second manual operating connecting rods as the support, It was difficult to assemble and install such that the bevel gears should be correctly engaged so as to rotate smoothly without detachment. Also, there was considerable difficulty in assembling the length of the switchgear connecting the switch on / off shaft in the switchboard door. In other words, since the first and second manual operation connecting rods have to be cut to adjust the length, it is possible to assemble and install only by an expert, which also takes a lot of time.

In addition, when the first and second bevel gears are poorly engaged or when the first and second bevel gears are slightly misaligned due to external shocks, the first and second bevel gears are not rotated smoothly.

The present invention has been devised to solve the above problems, and the manual switchgear to facilitate the transmission of the rotational power separately and to allow anyone, not the expert, to be easily installed on the switchgear on / off shaft of the switchboard. Regardless of the installation position such as the top or side of the switch on / off shaft from the switch or the position of the transmission of the driving force to the switch on / off shaft, the driving force can be smoothly transmitted to the switch on / off shaft in any direction. The present invention provides a flexible remote manual switchgear.

The above object of the present invention is a flexible plastic tube; A metal pipe fitted to both outer circumferential surfaces of the flexible plastic tube and having an uneven portion formed on an inner circumferential surface thereof; A hollow connection bolt fitted to one inner circumferential surface of the flexible plastic tube and having an uneven portion formed on an outer circumferential surface thereof so as to be unevenly coupled at the flexible plastic tube and the uneven portion by pressing the metal pipe; A hollow connection nut fitted to the other inner circumferential surface of the flexible plastic tube and having an uneven portion formed on an outer circumferential surface thereof so as to be unevenly coupled at the flexible plastic tube and the uneven portion by pressing the metal pipe; And Flexible cable unit consisting of a flexible spring cable is formed on both sides, the square coupling hole is inserted into the hollow connection bolt and the connection nut; The hollow connection bolt is helically coupled to one side, a bearing to which one side square coupling of the flexible spring cable is fitted, and a first bevel gear on one side are installed, and the first bevel gear is engaged, and a switch is installed on the switchboard. An elbow pipe on which the other second bevel gear into which the on / off shaft is fitted is installed, and a power transmission side fixture fixed to the switch on the other side to which the switch on / off shaft is fitted; The hollow connection nut is spirally coupled to one side, and a square hole into which the other square coupling hole of the flexible spring cable is fitted is formed at one side, and a coupling pin having a square connector formed at the other side is stepped and installed, and fixed to the switchboard door. A power drive side fixture to be installed; And a crank-type manual handle having a square hole into which a square connector of the coupling pin of the power driving side fixture is fitted.

A clutch bearing is installed in the second bevel gear of the flexible remote manual switchgear according to the present invention. The switch on / off shaft is installed to be fitted to the clutch bearing.

Hereinafter, the technical configuration and the effect of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded view showing the technical configuration of the present invention, a flexible remote manual switching device, Figure 2 is a technical configuration showing the assembly shown in FIG. 3 is a state diagram used in the flexible remote manual switching device of the present invention.

4 is a plan view showing the use of the flexible remote manual switchgear of the present invention installed in the switchgear of the switchgear, Figure 5 is a side view showing the installed state of the flexible remote manual switchgear of the present invention installed in the switchgear of the switchgear.

As shown in FIG. 1, the flexible remote manual switching device according to the present invention is roughly divided into a flexible plastic tube 21, a metal pipe 22 having an uneven portion 221 formed on an inner circumferential surface thereof, and an uneven portion 241 on an outer circumferential surface thereof. A hollow connection bolt 23 formed with a hollow connection nut 24 having an uneven portion formed on an outer circumferential surface thereof, and a flexible cable unit 20 formed of a flexible spring cable 25; An elbow pipe 30 having a bevel gear 31 and 32 installed therein and a power transmission side fixture 35 installed at one side of the flexible cable unit 20; And a power driving side fixture 50 installed at the other side of the flexible cable unit 20 and having a coupling pin 51 coupled to the manual handle 60.

The flexible cable unit 20 is fitted to the outer peripheral surface of the both sides of the flexible plastic tube 21 and the metal pipe 22 is formed with an uneven portion 221 on the inner peripheral surface; The flexible plastic tube 21 is inserted into one inner circumferential surface of the flexible plastic tube 21, and an uneven portion 231 is formed on the outer circumferential surface thereof so that the flexible plastic tube 21 and the uneven portion 221 and 231 are compressed by the metal pipe 22. Hollow connection bolt 23 and the uneven coupling in the; The flexible plastic tube 21 and the uneven parts 221 and 241 are inserted into the inner circumferential surface of the flexible plastic tube 21 and the uneven parts 241 are formed on the outer circumferential surface by pressing the metal pipe 22. Hollow connection nut 24 is uneven coupled in the; And a flexible spring cable 25 having square coupling holes 251 formed at both sides, which are inserted into the hollow connection bolt 23 and the connection nut 24.

The flexible cable unit 20 has a flexible spring cable 25 embedded in the flexible plastic tube 21 and protrudes to both sides, and the flexible cable unit 20 has a clearance between the flexible plastic tube 21 and the flexible spring cable 25. Hollow connection bolts 23 and hollow connection nuts 24 are inserted at both sides of the flexible plastic tube 21, and both sides of the flexible plastic tube 21 are fitted with the connection bolts 23 and the connection nuts 24. The metal pipe 22 is installed and assembled on the outer circumferential surface of the metal pipe 22. When the metal pipes 22 on both sides of the flexible plastic tube 21 are compressed with a crimping tool, the inner circumferential surface of the metal pipe 22 is uneven ( 221 presses on the flexible plastic tube 21 and thus the flexible plastic tube 21 is pressed into the connecting bolt 23 and the outer circumferential surface convex part () () of the connecting nut 24 to be integrally assembled. Achieved.

One side of the assembled flexible cable unit 20 is provided with an elbow pipe (30) provided with a power transmission side fixture (35) fixed to the switch (1). An empty connecting bolt 23 is helically coupled, and a bearing 33 and one side first bevel gear 31 to which one side square coupling hole 251 of the flexible spring cable 25 is fitted are installed, and the first bevel is installed. The second bevel gear 32 on which the gear 31 is engaged and the switch on / off shaft 40 installed in the switchboard is fitted is installed, and the switch on the other side to which the switch on / off shaft 40 is fitted. The power transmission side fixture 35 fixedly installed at (1) is provided. The first and second bevel gears 31 and 32 are assembled at right angles.

In addition, the second bevel gear 32 has a clutch bearing 34 embedded therein so that the actuator on / off shaft 40 is fitted to the clutch bearing 34 to be unevenly coupled to the second bevel gear 32. have. Accordingly, by the rotation of the flexible spring cable 25, the clutch bearing 34 rotates in one direction only by the switch on / off shaft 40 to prevent reverse rotation.

A hollow connecting bolt is inserted into the first bevel gear 31 of the curved tube 30 by fitting a square coupling hole 251 of the flexible spring cable 25 protruding to one side of the flexible cable unit 20. (23) is spirally coupled with the bent tube (30).

The other side of the assembled flexible cable unit 20 is fixed to the switchboard door 2 and the power drive side fixture 50 is provided with a coupling pin 51 is installed, the power drive side fixture 50 is Helix coupled to the hollow connection nut 24, a square hole 511 is formed on one side is fitted with the other square coupling hole 251 of the flexible spring cable 25, the square connector 512 is formed on the other side Coupling pins 51 are stepped and installed inside.

And the manual handle 60 is formed with a square hole 61 is fitted with a square connector 512 of the coupling pin 51 of the power drive side fixture 50 is formed of a crank type.

The flexible remote manual switchgear of the present invention assembled into a single component as described above, as shown in Figure 3, since the flexible cable unit 20 is smoothly bent power drive side to which the manual handle 60 is fitted When the switchboard door 2 in which the fixture 50 is installed is interfered by a wall or a pillar, the switchboard door 2 may be installed at a distance from the wall or the pillar to smoothly turn on / off the rotational power in any direction (curve direction) as well as a straight line. Can be delivered to the off shaft 40.

In addition, in the conventional case, even if the installation position of the bevel gear is narrow, even if the expert is inconvenient to take a lot of time, the present invention is only installed by inserting the bent pipe 30 to the switch on / off shaft 40, installation work This is easy.

4 and 5 are views showing the state of the flexible remote manual switchgear of the present invention installed on the switchboard in a plane and side view.

Flexible remote manual switchgear of the present invention is a single unit, unlike the prior art because the user installs the power drive side fixture 50 in the switchboard door (2), the tube 30 bent on the switch on / off shaft (40) Just install the power transmission side fixtures 35 of the manual steering 60, the square hole 61 is inserted into the square connector 512 of the power drive side fixture 50 to rotate the rotational power of the switch on / off shaft Since it can be delivered to the 40, there is no need for an expert to assemble and install the same as the conventional one, and since the first and second bevel gears 31 and 32 are built in the bent pipe 30 so as not to be separated, they are exposed as in the prior art. The discomfort of the repair work due to the misalignment of the first and second bevel gears 16 and 17 is not smoothly rotated.

When the manual handle 60 is inserted into the square connector 512 of the coupling pin 51 of the power driving side fixture 50 and rotated in one direction (right turn), the coupling spring 51 rotates and the flexible spring cable is coupled thereto. (25) rotates to rotate the first bevel gear (31), and the second bevel gear (32) meshing with the first bevel gear (31) rotates so that the clutch bearing (34) of the second bevel gear (32). ) Switch on / off shaft 40 is rotated so that switch 1 is turned on and the ON state display is indicated by the lighting of indicator (not shown) of switchboard door 2. .

Subsequently, the OFF of the switch is continually rotated in one direction (right turn) of the manual handle 60 to turn off the lit indicator to inform the user of the OFF state of the switch 1.

It will be appreciated that the present invention can be embodied in other specific forms without departing from the spirit constituting its main features. Accordingly, the above embodiments are to be considered in all cases as illustrative and not restrictive, and the invention is not to be limited to the above description.

As described above, anyone can easily install and use the flexible remote manual switchgear by using the manual handle because the flexible cable unit of the flexible remote manual switchgear flexes flexibly and there is no problem in the transmission of rotational power. Even when the rotational driving force transmission position to the switch on / off shaft is not in a straight line, the rotational driving force can be smoothly transmitted to the switch on / off shaft.

Claims (2)

With flexible plastic tubes; A metal pipe fitted to both outer circumferential surfaces of the flexible plastic tube and having an uneven portion formed on an inner circumferential surface thereof; A hollow connection bolt fitted to one inner circumferential surface of the flexible plastic tube and having an uneven portion formed on an outer circumferential surface thereof so as to be unevenly coupled at the flexible plastic tube and the uneven portion by pressing the metal pipe; A hollow connection nut fitted to the other inner circumferential surface of the flexible plastic tube and having an uneven portion formed on an outer circumferential surface thereof so as to be unevenly coupled at the flexible plastic tube and the uneven portion by pressing the metal pipe; And Flexible cable unit consisting of a flexible spring cable is formed on both sides, the square coupling hole is inserted into the hollow connection bolt and the connection nut; The hollow connection bolt is helically coupled to one side, and a bearing to which one side square coupling hole of the flexible spring cable is fitted and a first bevel gear on one side are installed, and the first bevel gear is engaged with the switch on / off in the switchboard. An elbow pipe on which the other second bevel gear into which the off shaft is fitted is installed, and a power transmission side fixture fixed to the switch on the other side to which the switch on / off shaft is fitted; The hollow connection nut is spirally coupled to one side, and a square hole into which the other square coupling hole of the flexible spring cable is fitted is formed at one side, and a coupling pin having a square connector formed at the other side is stepped and installed, and fixed to the switchboard door. A power drive side fixture to be installed; And And a crank-type manual handle having a square hole into which a square connector of the coupling pin of the power driving side fixture is fitted. The flexible remote manual switchgear according to claim 1, wherein a clutch bearing is installed in the second bevel gear so that the switch on / off shaft is fitted to the clutch bearing.

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